tag:blogger.com,1999:blog-2150235935818099517.post2466150172374342779..comments2017-07-12T22:33:11.115+01:00Comments on Maker School: Ping-Pong Ball Stomp CannonUnknownnoreply@blogger.comBlogger4125tag:blogger.com,1999:blog-2150235935818099517.post-81756428078595755102013-01-28T21:55:03.269+00:002013-01-28T21:55:03.269+00:00Thanks Jim. In the model shown in the video the f...Thanks Jim. In the model shown in the video the fit is fairly loose — maybe a couple of mm spare. In a subsequent version I have a contact fit. Performance is a bit better with the snug fit but it varies quite a lot with the nuances of your stomp. Both seem to cause large amounts of fun.Marcelhttps://www.blogger.com/profile/17837669713762321651noreply@blogger.comtag:blogger.com,1999:blog-2150235935818099517.post-67022040807100487222013-01-28T14:24:59.473+00:002013-01-28T14:24:59.473+00:00Cracking idea! What's the fit like between bal...Cracking idea! What's the fit like between ball and tube? In a very similar vein an old bucket, some polythene and elastic can make a very effective Air Vortex Cannon, with the benefit that the projectile itself is made of air.<br /><br />http://en.wikipedia.org/wiki/Air_vortex_cannonJimhttps://www.blogger.com/profile/04526935708908223565noreply@blogger.comtag:blogger.com,1999:blog-2150235935818099517.post-55376066212694462762013-01-25T01:31:33.085+00:002013-01-25T01:31:33.085+00:00Well if that's you're game a VACUUM PUMP i...Well if that's you're game a VACUUM PUMP is what you need! Search for "ping-pong ball cannon" :DMarcelhttps://www.blogger.com/profile/17837669713762321651noreply@blogger.comtag:blogger.com,1999:blog-2150235935818099517.post-91272814147945162722013-01-25T01:09:58.738+00:002013-01-25T01:09:58.738+00:00now to attach a can of compressed air and a dump v...now to attach a can of compressed air and a dump valve.... mariesshttps://www.blogger.com/profile/10109685277187754646noreply@blogger.com